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Evaluation of a leukocyte esterase and nitrite test strip for detection of bacteriuria

Current Microbiology 11(2): 119-122

Evaluation of a leukocyte esterase and nitrite test strip for detection of bacteriuria

The LN Chemstrip leukocyte esterase (LE) spot and the nitrite (N) spot were compared separately and in combination with colony-forming units (CFU/ml) in 628 urines. Using a positive LE or a positive N as an indicator of significant bacteriuria (105/ml), the sensitivity, specificity and the negative predictive values were high, but the positive predictive value was low. When LE and N were both negative, there was a close correlation with CFU/ml of < 20,000. For reactions other than LE-N-, a bimodal response was observed with most bacterial counts split between 20,000 and 105 CFU/ml.

Accession: 005395184

DOI: 10.1007/bf01567714

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